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Injector issue? Or not?


 
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Jackbenimble
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Joined: 21 Jun 2021
Posts: 1
Location: Australia

PostPosted: Mon Jun 21, 2021 11:34    Post subject: Injector issue? Or not? Reply with quote

Hi All, just hoping someone might be able to help me confirm a diagnosis. I have a 2001 Holden Jackaroo with the 4jx1 engine. Coming home from a long trip recently I noticed the car engine develop a hiccup or miss. It also appeared to have lost a substantial amount of torque needed for climbing hills. The car starts hot or cold ok, but runs rough on idle. The car has since been taken to a local GM dealership with the following diagnosis:

Checked oil pressure to the rail - all ok
Found oil pressure switch is leaking oil and soaking the injector harness
Requires new oil pressure switch and harness. ************************************************************
Carried out injector Balance test as requested-
No 2 injector is not operating and No 3 is working not as strong as Injector No 1 and 4.
Cylinder No 2 has no combustion and No 3 is not fare behind.

The mechanic that usually works on the vehicle suspects stuffed injectors. Are there any other possibilities or other aspects I should have checked?
Thanks in advance.
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PostPosted: Mon Jun 21, 2021 11:34    Post subject: Google Ads keep this community free to join!


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eithan h
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Joined: 11 Dec 2005
Posts: 8195
Location: oxfordish

PostPosted: Mon Jun 21, 2021 19:22    Post subject: Reply with quote

injector control test will show up a dodgy solenoid on the injector which sounds like what you have
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